Multifunctional Nonreciprocal Metasurfaces Based on Spatiotemporal Modulation

Xuchen Wang, Ana Diaz-Rubio, Huanan Li, Sergei A. Tretyakov, Andrea Alu

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

In this talk, we put forward the concept of multi-functional nonreciprocal metasurfaces realized on an universal hardware platform. The proposed prototype is based on a spatiotemporally modulated impedance surface. We show that using appropriate traveling wave modulations it is possible to realize various nonreciprocal properties controlling the response for illuminating plane waves. Based on this principle, we find proper modulation functions for different application purposes, which allows us to switch the device functionality among isolators, phase shifters, circulators, and potentially even more functionalities.

Original languageEnglish
Title of host publication14th European Conference on Antennas and Propagation, EuCAP 2020
PublisherEurAAP
Number of pages3
ISBN (Electronic)978-88-31299-00-8
DOIs
Publication statusPublished - Mar 2020
MoE publication typeA4 Conference publication
EventEuropean Conference on Antennas and Propagation - Copenhagen, Denmark
Duration: 15 Mar 202020 Mar 2020
Conference number: 14

Publication series

NameProceedings of the European Conference on Antennas and Propagation
ISSN (Print)2164-3342

Conference

ConferenceEuropean Conference on Antennas and Propagation
Abbreviated titleEUCAP
Country/TerritoryDenmark
CityCopenhagen
Period15/03/202020/03/2020

Funding

ACKNOWLEDGMENT This work received funding from the Foundation for Aalto University Science and Technology, the Academy of Finland (project 309421), and the European Union’s Horizon 2020 research and innovation programme – Future Emerging Topics (FETOPEN) under grant agreement No 736876 and the Air Force Office of Scientific Research.

Keywords

  • evanescent waves
  • multichannel metasurfaces
  • nonreciprocity
  • space-time

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  • Multiphysics Metadevices

    Diaz Rubio, A. (Principal investigator)

    01/09/201731/08/2020

    Project: Academy of Finland: Other research funding

  • VISORSURF: A Hardware Platform for Software-driven Functional Metasurfaces

    Tretiakov, S. (Principal investigator), Chowkwale, B. (Project Member), Liu, F. (Project Member), Ptitcyn, G. (Project Member), Tzarouchis, D. (Project Member), Jayathurathnage, P. (Project Member), Mirmoosa, M. (Project Member), Cuesta, F. (Project Member), Wang, X. (Project Member) & Asadchy, V. (Project Member)

    01/01/201731/12/2020

    Project: EU: Framework programmes funding

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